Home / 3,981.29-5,492.40-2,653.70

Finding the Fourth Proportional to 3,981.29, 5,492.40 and 2,653.70

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Solution

The fourth proportional to 3,981.29, 5,492.40 and 2,653.70 is: 3,660.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.29 : 5,492.40 = 2,653.70 : x
  2. Step 2: Convert to fraction form
    3,981.29/5,492.40 = 2,653.70/x
  3. Step 3: Cross multiply
    3,981.29x = 5,492.40 × 2,653.70
  4. Step 4: Simplify right side
    3,981.29x = 14,575,154.42
  5. Step 5: Solve for x
    x = 14,575,154.42/3,981.29
  6. Step 6: Final answer
    x = 3,660.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.